1. Em co-autoria com: Mendes, V. M., Sousa Ramos, J. and Gomes, O., (2008), Computing Topological Entropy in Asymmetric Cournot Duopoly Games with Homogeneous Players, Advanced Studies in Pure Mathematics.

2. Em co-autoria com: S. R. Bentes, and R. Menezes, (2008), Long Memory and Volatility Clustering: is the Empirical Evidence Consistent Across Stock Markets?, Physica A, Vol. 387 (15), 3826-3830.

3. Em co-autoria com: O. Gomes, and V. M. Mendes (2008), Bounded Rational Expectations and the Stability of Interest Rate Policy, Physica A, Vol. 387 (15), 3882-3890.

4. Em co-autoria com: V. M. Mendes (2008), Stability Analysis of an Implicitly Defined Labor Market Model, Physica A, Vol. 387 (15), 3921-3930.

5. Em co-autoria com: Dionísio, A., Menezes, R.,  and Silva, J.V., (2007), Nonlinear Dynamics Within Macroeconomic Factors And Stock Market In Portugal, Nonlinear Dynamics Within Macroeconomic Factors And Stock Market In Portugal, Applied Econometrics and International Development.

6. Em co-autoria com: Gomes, O., Mendes, V. M. and Sousa Ramos, J., (2007), Chaotic Dynamics in Optimal Monetary Policy, The European Physical Journal B, Vol. 57, No. 2, Pages 121-224.

7. Em co-autoria com: Laureano, R., and Ferreira, M. A., (2007), Efficient Synchronization with Chaotic Quadratic Maps, Procedings of APLIMAT 2007 - 6-th International Conference on Applied Mathematics, February 6-9, 2007, Bratislava.

8. Em co-autoria com: Ferreira, N. B.,  and Menezes, R., (2007), Asymmetric Conditional Volatility in the Stock Market: A Cross Country Comparision, Procedings of APLIMAT 2007 - 6-th International Conference on Applied Mathematics, February 6-9, 2007, Bratislava.

9. Em co-autoria com: Menezes, R. and Ferreira, N., (2007), Asymmetric Conditional Volatility in International Stock Markets, Physica A, Vol. 382, Issue 1, Pages 1-358 .

10. Em co-autoria com: Dionísio, A. and Menezes, R., (2007), On the Integrated Behaviour of Non-Stationary Volatility in Stock Markets, Physica A, Volume 382, Issue 1, 58-65

11. Em co-autoria com: Menezes, R. and Ferreira, N., (2006), Co-Movements and Asymmetric Volatility in the Portuguese and US Stock Markets, Nonlinear Dynamics, 44, 359-366.

12. Em co-autoria com: Dionísio, A. and Menezes, R., (2006), Entropy-Based Independence Test, Nonlinear Dyanmics, 44, 351-357.

13. Em co-autoria com: Dionisio, A. and Menezes, R., (2006), An Econophysics Approach to Analyse Uncertainty in Financial Markets: an Application to the Portuguese Stock Market, European Physical Journal B, Vol. 50 No. 1-2, 161-165.

14. Em co-autoria com: Mendes, V. M., (2005), Control of Chaos in an OLG Economic Model, Journal of Physics, Vol. 23, 158-181.

15. Em co-autoria com: Dionisio, A., Menezes, R. and Silva, J., (2005), Analysis of the Relationship between Stock Market Prices and Macroeconomic and Financial Factors: a Linear Approach, Journal of International Finance and Economics (JIFE), Vol. 1 (1),1-8.

16. Em co-autoria com: Sousa Ramos, J., (2004), Kneading Theory for Triangular Maps, Int. Journal Pure and Appl. Math, 10 (4), 421-450.

17. Em co-autoria com: Sousa Ramos, J., (2004), Computing the Topological Entropy of Triangular Maps of the Plane, Grazer Math. Ber., 346, 283-297.

18. Em co-autoria com: Dionísio, A. and Menezes, R., (2004), Mutual Information: a Measure of Dependency for Nonlinear Time Series, Physica A, 344, 326-329.

19. Em co-autoria com: Dionísio, A. and Menezes, R., (2004), Asymmetric Price Transmission Within the Portuguese Stock Market, Physica A, 344, 312-316

20. Em co-autoria com: Dionísio, A. and Menezes, R., (2003), Entropic Measures of Information and Goodness-of-Fit in Financial Data, Review of Financial Markets, No. 2, 5-18.